Troubleshooting Guide

4.0 Troubleshooting
PCA 30-M1
PUMP DOES NOT RUN
1. Check wiring diagram for proper connections. Confirm all electrical terminations are tight and secure.
2. Check for proper voltage selector switch settings on your DC source input. If the incoming voltage is
less than the set point voltage, the controller will not turn on.
3. On a 24 volt battery system, make sure the batteries are at a full state of charge and that the controller
voltage selector number “2” switch is turned on.
4. Check for proper controller input and output with a DC volt-meter. A quick look at the LED indicator
lights will verify power coming from the DC source supply going to the controller (red), power going
from the controller to the pump (green). If any of the three amber lights are flashing the pump will be
turned off. They are over-current shut down, low water cut-off or remote switch cut-off. If the red light
is on and the green and amber lights are not, make sure the system on/off switch is on, disconnect the
remote switch wires and turn switch 4 off. If the green light is still not on, disconnect the pump wires,
LD- and LD+. If the green light does not turn on then check voltage on LD- and LD+ with a volt-
meter to confirm no output voltage. If there is still no output voltage the controller is faulty and must
be sent back to the factory for repair. If the green light turns on and the output voltage is now equal to
the input voltage, there is a short circuit either in the wiring or the pump.
5. For additional pump test, if the red light is on, connect a jumper wire across terminals PV- and LD-.
This will bypass the controller and allow the pump to run directly from the DC source. This step will
confirm pump operation. If the DC source is a solar array, the test must be conducted when full
sunlight is available for a valid test.
RED AND GREEN LIGHTS ARE ON, AMBER LIGHTS ARE OFF AND THE PUMP DOES
NOT RUN
To verify power coming out of the controller, connect a DC voltmeter across LD+ and LD-. If 12 Volts or
more is coming out then:
1. Check the splice above the pump for proper connections.
2. Check for broken wire leading to the pump.
3. Check for open motor winding. With an ohmmeter set on the R x 1 scale, check between the two
pump lead wires. The meter reading should be between .5 to 50 ohms. If the resistance is higher than
this, disconnect the pump at the splice above the pump and check again.
NO VOLTAGE AT THE LD+ AND LD- TERMINALS
1. Make sure the system ON/OFF switch is ON.
2. Make sure none of the amber lights are flashing.
3. Check to see if the float switch, if used, is functioning properly.